Dicks told the Sun: "The FA were far too lenient on Keane and a five-game ban was no way near enough.
"I got a four-match ban when I was alleged to have stamped on John Spencer and I didn't even mean that.
"They should have chucked the book at him and banned him for life for what he did. To go out and try to maim someone is a disgrace, especially as it could put someone's career on the line. I find it remarkable he actually came out and admitted it. I did some silly things when I played but I never went over the top like that. It was terrible."